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<div class="title">nih::cuda::Binned_sah_builder Struct Reference<div class="ingroups"><a class="el" href="group__bvh.html">Bounding Volume Hierarchies</a></div></div>  </div>
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<!-- doxytag: class="nih::cuda::Binned_sah_builder" -->
<p><code>#include &lt;<a class="el" href="binned__sah__builder_8h_source.html">binned_sah_builder.h</a>&gt;</code></p>

<p><a href="structnih_1_1cuda_1_1_binned__sah__builder-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a554246500d49d52401d258d3bb26ba6a"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::Bin" ref="a554246500d49d52401d258d3bb26ba6a" args="" -->
typedef <a class="el" href="structnih_1_1cuda_1_1binned__sah_1_1_bin.html">binned_sah::Bin</a>&#160;</td><td class="memItemRight" valign="bottom"><b>Bin</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ac01ca50df0ebd0c560e9c800adcef6c3"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::Bbox" ref="ac01ca50df0ebd0c560e9c800adcef6c3" args="" -->
typedef <a class="el" href="structnih_1_1cuda_1_1binned__sah_1_1_bbox.html">binned_sah::Bbox</a>&#160;</td><td class="memItemRight" valign="bottom"><b>Bbox</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="afbe5b0cc5e44ee0728ece73979df0bf5"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::Split" ref="afbe5b0cc5e44ee0728ece73979df0bf5" args="" -->
typedef <a class="el" href="structnih_1_1cuda_1_1binned__sah_1_1_split.html">binned_sah::Split</a>&#160;</td><td class="memItemRight" valign="bottom"><b>Split</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ae39fd7cb95dcceddf4ad19a2680370f6"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::Queue" ref="ae39fd7cb95dcceddf4ad19a2680370f6" args="" -->
typedef <a class="el" href="structnih_1_1cuda_1_1binned__sah_1_1_queue.html">binned_sah::Queue</a>&#160;</td><td class="memItemRight" valign="bottom"><b>Queue</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0fb222ee587dd4e8977bc6b73dc423b5"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::Objects" ref="a0fb222ee587dd4e8977bc6b73dc423b5" args="" -->
typedef <a class="el" href="structnih_1_1cuda_1_1binned__sah_1_1_objects.html">binned_sah::Objects</a>&#160;</td><td class="memItemRight" valign="bottom"><b>Objects</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9b763e41dcd445d72fd86c15bf46fd48"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::Bins" ref="a9b763e41dcd445d72fd86c15bf46fd48" args="" -->
typedef <a class="el" href="structnih_1_1cuda_1_1binned__sah_1_1_bins.html">binned_sah::Bins</a>&#160;</td><td class="memItemRight" valign="bottom"><b>Bins</b></td></tr>
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structnih_1_1cuda_1_1_binned__sah__builder.html#aa63d7a78d801ae4bf48f61cc84733de8">Binned_sah_builder</a> (thrust::device_vector&lt; <a class="el" href="structnih_1_1_bvh__node.html">Bvh_node</a> &gt; &amp;nodes, thrust::device_vector&lt; uint2 &gt; &amp;leaves, thrust::device_vector&lt; uint32 &gt; &amp;index)</td></tr>
<tr><td class="memTemplParams" colspan="2">template&lt;typename Iterator &gt; </td></tr>
<tr><td class="memTemplItemLeft" align="right" valign="top">void&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="structnih_1_1cuda_1_1_binned__sah__builder.html#a5fd96275420b12b971605663dc19b169">build</a> (const uint32 BINS, const <a class="el" href="structnih_1_1_bbox.html">Bbox3f</a> bbox, const Iterator bbox_begin, const Iterator bbox_end, const uint32 max_leaf_size, const float max_cost=1.8f)</td></tr>
<tr><td colspan="2"><h2><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a622cb42800e5ee4b2e7d7047b2d6a450"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_nodes" ref="a622cb42800e5ee4b2e7d7047b2d6a450" args="" -->
thrust::device_vector&lt; <a class="el" href="structnih_1_1_bvh__node.html">Bvh_node</a> &gt; *&#160;</td><td class="memItemRight" valign="bottom"><b>m_nodes</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab82b4f8c71cc0a28aaf3aff2fde1b2a3"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_leaves" ref="ab82b4f8c71cc0a28aaf3aff2fde1b2a3" args="" -->
thrust::device_vector&lt; uint2 &gt; *&#160;</td><td class="memItemRight" valign="bottom"><b>m_leaves</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4c533ca91518655498ceae8a8611dd88"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_index" ref="a4c533ca91518655498ceae8a8611dd88" args="" -->
thrust::device_vector&lt; uint32 &gt; *&#160;</td><td class="memItemRight" valign="bottom"><b>m_index</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad2cba49707900fa31a015dcb432fa80d"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_levels" ref="ad2cba49707900fa31a015dcb432fa80d" args="[128]" -->
uint32&#160;</td><td class="memItemRight" valign="bottom"><b>m_levels</b> [128]</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a78d373a27961b471aa5fbdfc86b2c08f"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_level_count" ref="a78d373a27961b471aa5fbdfc86b2c08f" args="" -->
uint32&#160;</td><td class="memItemRight" valign="bottom"><b>m_level_count</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7fa0f1ed12903bee53cfc6504913d5f8"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_bbox" ref="a7fa0f1ed12903bee53cfc6504913d5f8" args="" -->
<a class="el" href="structnih_1_1_bbox.html">Bbox3f</a>&#160;</td><td class="memItemRight" valign="bottom"><b>m_bbox</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a28681b805d3b1b4eb4875827758b82e9"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_node_count" ref="a28681b805d3b1b4eb4875827758b82e9" args="" -->
uint32&#160;</td><td class="memItemRight" valign="bottom"><b>m_node_count</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a5b71b3b0d4789254f8f4495b1f37c632"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_leaf_count" ref="a5b71b3b0d4789254f8f4495b1f37c632" args="" -->
uint32&#160;</td><td class="memItemRight" valign="bottom"><b>m_leaf_count</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9ab744938b3c86f84ec0e86375f0fb1b"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_init_bins_time" ref="a9ab744938b3c86f84ec0e86375f0fb1b" args="" -->
float&#160;</td><td class="memItemRight" valign="bottom"><b>m_init_bins_time</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3734bb6f4ddcf49e518014af63eaae4d"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_update_bins_time" ref="a3734bb6f4ddcf49e518014af63eaae4d" args="" -->
float&#160;</td><td class="memItemRight" valign="bottom"><b>m_update_bins_time</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad6afff198a6fd6b70364403be6d504ee"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_sah_split_time" ref="ad6afff198a6fd6b70364403be6d504ee" args="" -->
float&#160;</td><td class="memItemRight" valign="bottom"><b>m_sah_split_time</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3eff9293ede073c20c83d570cd52338f"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_distribute_objects_time" ref="a3eff9293ede073c20c83d570cd52338f" args="" -->
float&#160;</td><td class="memItemRight" valign="bottom"><b>m_distribute_objects_time</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a284ef326abe8fd633192902b2d53b171"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_bin_bmin" ref="a284ef326abe8fd633192902b2d53b171" args="" -->
thrust::device_vector&lt; float3 &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>m_bin_bmin</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8ba8a88ee4d3b73a3ac8438297aea3a9"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_bin_bmax" ref="a8ba8a88ee4d3b73a3ac8438297aea3a9" args="" -->
thrust::device_vector&lt; float3 &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>m_bin_bmax</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ace5bd10ed06c7427164b47148a4db972"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_bin_size" ref="ace5bd10ed06c7427164b47148a4db972" args="" -->
thrust::device_vector&lt; int32 &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>m_bin_size</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="abe7812e41306dcb14e2d893bed3a997c"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_queue_bins" ref="abe7812e41306dcb14e2d893bed3a997c" args="" -->
thrust::device_vector&lt; <a class="el" href="structnih_1_1cuda_1_1binned__sah_1_1_bin.html">Bin</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>m_queue_bins</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7e9b9e16f2802e106fdcb12c9dbdb031"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_queue_splits" ref="a7e9b9e16f2802e106fdcb12c9dbdb031" args="" -->
thrust::device_vector&lt; <a class="el" href="structnih_1_1cuda_1_1binned__sah_1_1_split.html">Split</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>m_queue_splits</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a276eeb44bed867172c818c4f256c9b12"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_queue_offsets" ref="a276eeb44bed867172c818c4f256c9b12" args="" -->
thrust::device_vector&lt; uint32 &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>m_queue_offsets</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a949b3b856a6e0fb81b5be169768e3b68"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_bin_ids" ref="a949b3b856a6e0fb81b5be169768e3b68" args="" -->
thrust::device_vector&lt; int4 &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>m_bin_ids</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa6475cf583a04104307b4fb62d13c738"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_split_ids" ref="aa6475cf583a04104307b4fb62d13c738" args="" -->
thrust::device_vector&lt; int32 &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>m_split_ids</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0ee10cc2841c1cce7250db6c3d25f4d7"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_node_ids" ref="a0ee10cc2841c1cce7250db6c3d25f4d7" args="" -->
thrust::device_vector&lt; int32 &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>m_node_ids</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a64720f7846a23e8b928bf893a7c7542d"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_new_pos" ref="a64720f7846a23e8b928bf893a7c7542d" args="" -->
thrust::device_vector&lt; uint32 &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>m_new_pos</b></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="accf758923f191a318793f5f46d0895d2"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::m_counters" ref="accf758923f191a318793f5f46d0895d2" args="" -->
thrust::device_vector&lt; uint32 &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>m_counters</b></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>GPU-based binned SAH BVH builder.</p>
<p>This builders provides the context to generate a bounding volume hierarchy using the binned Surface Area Heuristic out of a generic set of unsorted bounding boxes. </p>
</div><hr/><h2>Constructor &amp; Destructor Documentation</h2>
<a class="anchor" id="aa63d7a78d801ae4bf48f61cc84733de8"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::Binned_sah_builder" ref="aa63d7a78d801ae4bf48f61cc84733de8" args="(thrust::device_vector&lt; Bvh_node &gt; &amp;nodes, thrust::device_vector&lt; uint2 &gt; &amp;leaves, thrust::device_vector&lt; uint32 &gt; &amp;index)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">nih::cuda::Binned_sah_builder::Binned_sah_builder </td>
          <td>(</td>
          <td class="paramtype">thrust::device_vector&lt; <a class="el" href="structnih_1_1_bvh__node.html">Bvh_node</a> &gt; &amp;&#160;</td>
          <td class="paramname"><em>nodes</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">thrust::device_vector&lt; uint2 &gt; &amp;&#160;</td>
          <td class="paramname"><em>leaves</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">thrust::device_vector&lt; uint32 &gt; &amp;&#160;</td>
          <td class="paramname"><em>index</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td><code> [inline]</code></td>
        </tr>
      </table>
</div>
<div class="memdoc">
<p>constructor</p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">nodes</td><td>output nodes array </td></tr>
    <tr><td class="paramname">leaves</td><td>output leaf array </td></tr>
    <tr><td class="paramname">index</td><td>output index array </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a5fd96275420b12b971605663dc19b169"></a><!-- doxytag: member="nih::cuda::Binned_sah_builder::build" ref="a5fd96275420b12b971605663dc19b169" args="(const uint32 BINS, const Bbox3f bbox, const Iterator bbox_begin, const Iterator bbox_end, const uint32 max_leaf_size, const float max_cost=1.8f)" -->
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;typename Iterator &gt; </div>
      <table class="memname">
        <tr>
          <td class="memname">void nih::cuda::Binned_sah_builder::build </td>
          <td>(</td>
          <td class="paramtype">const uint32&#160;</td>
          <td class="paramname"><em>BINS</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="structnih_1_1_bbox.html">Bbox3f</a>&#160;</td>
          <td class="paramname"><em>bbox</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const Iterator&#160;</td>
          <td class="paramname"><em>bbox_begin</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const Iterator&#160;</td>
          <td class="paramname"><em>bbox_end</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint32&#160;</td>
          <td class="paramname"><em>max_leaf_size</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const float&#160;</td>
          <td class="paramname"><em>max_cost</em> = <code>1.8f</code>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div>
<div class="memdoc">
<p>build a bvh given a set of bboxes</p>
<dl><dt><b>Parameters:</b></dt><dd>
  <table class="params">
    <tr><td class="paramname">BINS</td><td>number of bins to use </td></tr>
    <tr><td class="paramname">bbox</td><td>global bbox </td></tr>
    <tr><td class="paramname">bbox_begin</td><td>beginning of the bbox sequence </td></tr>
    <tr><td class="paramname">bbox_end</td><td>end of the bbox sequence </td></tr>
    <tr><td class="paramname">max_leaf_size</td><td>maximum leaf size </td></tr>
    <tr><td class="paramname">max_cost</td><td>maximum cost relative to the parent </td></tr>
  </table>
  </dd>
</dl>

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